Symptom Diagnosis

Symptom checks cannot be used properly unless the problem occurs while the vehicle is being tested. To reduce diagnostic time, ensure steps in BASIC TESTING and TESTS W/CODES articles in this section were performed before diagnosing a symptom:

• F - 1.3L TBI BASIC TESTING
• F - 1.6L TBI BASIC TESTING
• F - 1.6L MFI BASIC TESTING
• F - 1.3L DOHC BASIC TESTING
• F - 1.3L SOHC BASIC TESTING
• G - 1.3L TBI TESTS W/ CODES
• G - 1.6L TBI TESTS W/ CODES
• G - 1.6L MFI TESTS W/ CODES
• G - 1.3L DOHC TESTS W/ CODES
• G - 1.3L SOHC TESTS W/ CODES

Symptoms available for diagnosis include:

• Difficult Or No Start (Cranks Okay)
• Engine Misfires Or Has Lack Of Power
• Rough Or Unstable Idle
• Engine Hesitates
• Engine Surges
• Spark Knock/Detonation
• Poor Fuel Mileage
• Fails Emission Test
• Overheating